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| <h1 title="Package" class="title">Package org.apache.commons.math3.stat.descriptive</h1> |
| <div class="docSummary"> |
| <div class="block">Generic univariate summary statistic objects.</div> |
| </div> |
| <p>See: <a href="#package_description">Description</a></p> |
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| <table class="packageSummary" border="0" cellpadding="3" cellspacing="0" summary="Interface Summary table, listing interfaces, and an explanation"> |
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| <tr> |
| <th class="colFirst" scope="col">Interface</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/commons/math3/stat/descriptive/StatisticalMultivariateSummary.html" title="interface in org.apache.commons.math3.stat.descriptive">StatisticalMultivariateSummary</a></td> |
| <td class="colLast"> |
| <div class="block">Reporting interface for basic multivariate statistics.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/commons/math3/stat/descriptive/StatisticalSummary.html" title="interface in org.apache.commons.math3.stat.descriptive">StatisticalSummary</a></td> |
| <td class="colLast"> |
| <div class="block">Reporting interface for basic univariate statistics.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/commons/math3/stat/descriptive/StorelessUnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">StorelessUnivariateStatistic</a></td> |
| <td class="colLast"> |
| <div class="block">Extends the definition of <a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive"><code>UnivariateStatistic</code></a> with |
| <a href="../../../../../../org/apache/commons/math3/stat/descriptive/StorelessUnivariateStatistic.html#increment(double)"><code>StorelessUnivariateStatistic.increment(double)</code></a> and <a href="../../../../../../org/apache/commons/math3/stat/descriptive/StorelessUnivariateStatistic.html#incrementAll(double[])"><code>StorelessUnivariateStatistic.incrementAll(double[])</code></a> methods for adding |
| values and updating internal state.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive">UnivariateStatistic</a></td> |
| <td class="colLast"> |
| <div class="block">Base interface implemented by all statistics.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/commons/math3/stat/descriptive/WeightedEvaluation.html" title="interface in org.apache.commons.math3.stat.descriptive">WeightedEvaluation</a></td> |
| <td class="colLast"> |
| <div class="block">Weighted evaluation for statistics.</div> |
| </td> |
| </tr> |
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| <caption><span>Class Summary</span><span class="tabEnd"> </span></caption> |
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| <th class="colFirst" scope="col">Class</th> |
| <th class="colLast" scope="col">Description</th> |
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| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/commons/math3/stat/descriptive/AbstractStorelessUnivariateStatistic.html" title="class in org.apache.commons.math3.stat.descriptive">AbstractStorelessUnivariateStatistic</a></td> |
| <td class="colLast"> |
| <div class="block">Abstract implementation of the <a href="../../../../../../org/apache/commons/math3/stat/descriptive/StorelessUnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive"><code>StorelessUnivariateStatistic</code></a> interface.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/commons/math3/stat/descriptive/AbstractUnivariateStatistic.html" title="class in org.apache.commons.math3.stat.descriptive">AbstractUnivariateStatistic</a></td> |
| <td class="colLast"> |
| <div class="block">Abstract base class for all implementations of the |
| <a href="../../../../../../org/apache/commons/math3/stat/descriptive/UnivariateStatistic.html" title="interface in org.apache.commons.math3.stat.descriptive"><code>UnivariateStatistic</code></a> interface.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/commons/math3/stat/descriptive/AggregateSummaryStatistics.html" title="class in org.apache.commons.math3.stat.descriptive">AggregateSummaryStatistics</a></td> |
| <td class="colLast"> |
| <div class="block"> |
| An aggregator for <code>SummaryStatistics</code> from several data sets or |
| data set partitions.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html" title="class in org.apache.commons.math3.stat.descriptive">DescriptiveStatistics</a></td> |
| <td class="colLast"> |
| <div class="block">Maintains a dataset of values of a single variable and computes descriptive |
| statistics based on stored data.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/commons/math3/stat/descriptive/MultivariateSummaryStatistics.html" title="class in org.apache.commons.math3.stat.descriptive">MultivariateSummaryStatistics</a></td> |
| <td class="colLast"> |
| <div class="block">Computes summary statistics for a stream of n-tuples added using the |
| <a href="../../../../../../org/apache/commons/math3/stat/descriptive/MultivariateSummaryStatistics.html#addValue(double[])"><code>addValue</code></a> method.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/commons/math3/stat/descriptive/StatisticalSummaryValues.html" title="class in org.apache.commons.math3.stat.descriptive">StatisticalSummaryValues</a></td> |
| <td class="colLast"> |
| <div class="block">Value object representing the results of a univariate statistical summary.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/commons/math3/stat/descriptive/SummaryStatistics.html" title="class in org.apache.commons.math3.stat.descriptive">SummaryStatistics</a></td> |
| <td class="colLast"> |
| <div class="block"> |
| Computes summary statistics for a stream of data values added using the |
| <a href="../../../../../../org/apache/commons/math3/stat/descriptive/SummaryStatistics.html#addValue(double)"><code>addValue</code></a> method.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/commons/math3/stat/descriptive/SynchronizedDescriptiveStatistics.html" title="class in org.apache.commons.math3.stat.descriptive">SynchronizedDescriptiveStatistics</a></td> |
| <td class="colLast"> |
| <div class="block">Implementation of |
| <a href="../../../../../../org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html" title="class in org.apache.commons.math3.stat.descriptive"><code>DescriptiveStatistics</code></a> that |
| is safe to use in a multithreaded environment.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/commons/math3/stat/descriptive/SynchronizedMultivariateSummaryStatistics.html" title="class in org.apache.commons.math3.stat.descriptive">SynchronizedMultivariateSummaryStatistics</a></td> |
| <td class="colLast"> |
| <div class="block">Implementation of |
| <a href="../../../../../../org/apache/commons/math3/stat/descriptive/MultivariateSummaryStatistics.html" title="class in org.apache.commons.math3.stat.descriptive"><code>MultivariateSummaryStatistics</code></a> that |
| is safe to use in a multithreaded environment.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/commons/math3/stat/descriptive/SynchronizedSummaryStatistics.html" title="class in org.apache.commons.math3.stat.descriptive">SynchronizedSummaryStatistics</a></td> |
| <td class="colLast"> |
| <div class="block">Implementation of |
| <a href="../../../../../../org/apache/commons/math3/stat/descriptive/SummaryStatistics.html" title="class in org.apache.commons.math3.stat.descriptive"><code>SummaryStatistics</code></a> that |
| is safe to use in a multithreaded environment.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </li> |
| </ul> |
| <a name="package_description"> |
| <!-- --> |
| </a> |
| <h2 title="Package org.apache.commons.math3.stat.descriptive Description">Package org.apache.commons.math3.stat.descriptive Description</h2> |
| <div class="block">Generic univariate summary statistic objects. |
| |
| <h3>UnivariateStatistic API Usage Examples:</h3> |
| |
| <h4>UnivariateStatistic:</h4> |
| <code>/∗ evaluation approach ∗/<br/> |
| double[] values = new double[] { 1, 2, 3, 4, 5 };<br/> |
| <span style="font-weight: bold;">UnivariateStatistic stat = new Mean();</span><br/> |
| out.println("mean = " + <span style="font-weight: bold;">stat.evaluate(values)</span>);<br/> |
| </code> |
| |
| <h4>StorelessUnivariateStatistic:</h4> |
| <code>/∗ incremental approach ∗/<br/> |
| double[] values = new double[] { 1, 2, 3, 4, 5 };<br/> |
| <span style="font-weight: bold;">StorelessUnivariateStatistic stat = new Mean();</span><br/> |
| out.println("mean before adding a value is NaN = " + <span style="font-weight: bold;">stat.getResult()</span>);<br/> |
| for (int i = 0; i < values.length; i++) {<br/> |
| <span style="font-weight: bold;">stat.increment(values[i]);</span><br/> |
| out.println("current mean = " + <span style="font-weight: bold;">stat2.getResult()</span>);<br/> |
| }<br/> |
| <span style="font-weight: bold;"> stat.clear();</span><br/> |
| out.println("mean after clear is NaN = " + <span style="font-weight: bold;">stat.getResult()</span>); |
| </code></div> |
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